Asked about his all time orgasm record, he said: “Once in Dublin, nine. Not even in a day, an evening. I felt exhausted the next day.

“After I came off drugs, I had a lot of energy that needed to go somewhere, and I thought that [was the] way.”

And Russell – who once spent time in an American sex addiction clinic – made sure that his girl was left satisfied by her Irish romp as he felt it would be rude if she didn’t orgasm too.

He added: “You’ve got to make sure everyone is happy. I think that that person you’re having sex with must have an orgasm first, or you’re not fulfilling your duty as a man.”

Russell has often questioned the concept of monogamy

Speaking in a question-and-answers session with fans, Russell also told why he is continually questioning the idea of monogamy being right.

He said: “Monogamy is a very severe state. If you’re married you have sex with one person, that’s only one person more than a monk. It’s a hardcore principle, but it’s beautiful and to be recommended.”

Now Russell – who has been dating hotel heiress Alessandra Balazs for a few months – is set to return to Ireland in November for an Olympia Theatre show.

But it’s unknown whether the Get Him To The Greek star is planning to try and break his record during the Dublin trip.

Recently, Russell admitted he now tries to be more “discerning” about who he sleeps with.

He said: “I’m calming down a bit. I’m a bit less likely to just relentlessly hurl myself into a troth full of parts, you know, sex parts.

“Now I try and be a bit more discerning about what goes on.”

Following his split from US pop babe Katy in 2011 after 14 months of marriage, Russell has been linked to a huge number of stars.

He has been seen getting cosy with celebrities including Spice Girl Geri Halliwell and Australian presenter Kate Peck.